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Finding the Fourth Proportional to 4,160.86, 5,749.59 and 3,958.38

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Solution

The fourth proportional to 4,160.86, 5,749.59 and 3,958.38 is: 5,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.86 : 5,749.59 = 3,958.38 : x
  2. Step 2: Convert to fraction form
    4,160.86/5,749.59 = 3,958.38/x
  3. Step 3: Cross multiply
    4,160.86x = 5,749.59 × 3,958.38
  4. Step 4: Simplify right side
    4,160.86x = 22,759,062.06
  5. Step 5: Solve for x
    x = 22,759,062.06/4,160.86
  6. Step 6: Final answer
    x = 5,469.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.